EP2492585A2 - Light insert, in particular for a floor light - Google Patents

Abstract

The insert (6) has two linearly-arranged groups of LEDs that are arranged on a common or on separate light center carrier (8). A multipart reflector (9) is provided with reflection regions that are provided to the LED groups. An arrangement and/or adjustment of the reflector are selected corresponding to the LED groups. Light-current emitted by one LED group is reflected by the reflector in a predefinable region of a surface. Light-current emitted by another LED group is reflected by the reflector in another predefinable region of the surface.

Description

The invention relates to a luminaire insert for use in a luminaire housing, by means of which a surface emanating from the luminaire housing can be illuminated.

In lighting technology, the task is often to illuminate larger areas, such as house facades or in general "walls" with large external surfaces. For this purpose, it is known to use, for example, at a greater distance from this surface to be illuminated emitter-like lighting devices. In order that such emitter-type illumination devices do not impair the use of a floor area located, for example, in front of a house facade, such emitters can preferably be placed on the underground facade of the house at a fairly small "horizontal" distance from the house facade. Also, lateral arrangements in the field of, for example, at right angles or obliquely to the house facade extending walls or ceiling arrangements are conceivable in which the distance to the house facade can also be chosen sher low.

It is also known to use so-called. Recessed floor lights, which are embedded in a corresponding distance from the house facade in the underground. Accordingly, the lower end portions of a house facade have a much smaller distance from such lighting devices than the upper end portions. This has the consequence that these closer areas of a house facade with uniformly radiating illumination device be illuminated much more intense than the upper end portions of the house facade.

In order to achieve a uniform illumination, it would also be possible to additionally install additional radiator-like lighting devices in the upper area of a house façade so that overall the house façade can be illuminated quite evenly. By this multiple arrangement of spotlights in the floor area and the head of such a house facade, it is also possible to achieve certain lighting effects by different control of the individual spotlights. In other words, certain surface areas of a house façade can, for example, be illuminated to different degrees in order to achieve certain effects, for example highlighting certain ornaments or the like on a house façade.

However, these spotlight-like lighting devices have the great disadvantage that they are not glare-free for the viewer. Part of the luminous flux is always directed in the direction of the viewer, so that this is perceived by the viewer as disturbing. Furthermore, in order to achieve the most uniform possible illumination, it is also possible to place ground spotlights set up on the ground at a slightly greater distance of a few meters to a house façade. However, this has the considerable disadvantage that the emitted luminous flux, for example, by persons located between the ground radiators and the house facade, at least partially obscure the emitted luminous flux, which is always undesirable.

Accordingly, the invention has the object to provide a luminaire insert for a luminaire housing available, in particular for a floor lamp, by means of which a surface emanating from the luminaire housing can be illuminated, wherein a as close as possible arrangement of this lamp to one of the edge regions of the surface to be illuminated should be possible.

The object is achieved according to the invention together with the features of the preamble of claim 1, characterized in that at least two each line-shaped arranged groups of light emitting diodes are provided, which are arranged on a common or separate illuminant carriers and that the groups of light emitting diodes opposite a on or multi-part reflector is provided with one or more reflection regions and that the arrangement and / or orientation of the groups of light-emitting diodes and / or the arrangement and / or orientation of the reflector with his or with its reflection region (s) relative to the groups of light emitting diodes such it is selected that the luminous flux emitted by the one group of light-emitting diodes is reflected by the reflector into a predeterminable region of the surface and that the luminous flux emitted by the other group of light-emitting diodes reflects through the reflector into another predeterminable region of the surface is ktiert.

The inventive design a luminaire insert for a luminaire housing, in particular a floor lamp, provided by means of which it is particularly possible to uniformly illuminate a house facade or other adjacent, approximately parallel to the emitted luminous flux of the luminaire extending surface. Furthermore, various lighting effects can be achieved by various measures, so that certain areas of the surface to be illuminated appear lightened or darkened.

According to the invention, in particular at least two groups of light-emitting diodes arranged in rows are provided. The light emitting diodes of these groups can be arranged alternately side by side or in parallel rows one above the other. The Light emission of these LEDs takes place in the installed state in a direction away from the surface to be illuminated. Accordingly, these LEDs is associated with a reflector opposite, through which the luminous flux emitted by the light emitting diodes "thrown back" on the surface to be illuminated. In order to achieve the most uniform possible illumination of this surface, these groups of light emitting diodes relative to each other and also relative to the reflector are aligned and arranged so that the emitted luminous flux of a group of light-emitting diodes is reflected to a first predetermined area of the surface to be illuminated, said surface For example, the lower portion of a house facade or adjacent wall may be. The second group of light-emitting diodes is arranged and aligned in a different manner such that their emitted luminous flux is reflected by the reflector into another area of the surface to be illuminated. The respective setting with respect to the arrangement and orientation of the groups of light-emitting diodes can be chosen such that the predetermined area adjoin one another or partially overlap the predetermined areas.

By this basic arrangement of the groups of light emitting diodes relative to each other and relative to the reflector, it is thus possible to arrange a lighting device, in particular in the form of a floor lamp, at a relatively small distance to an edge region of a surface to be illuminated, for example a house facade, while still through the different reflections of the light emissions of the LEDs, a relatively uniform illumination of such a surface, in particular in the areas with a greater distance to the lamp insert can be achieved. For this purpose, the reflector may be designed in the manner of a hollow cylinder segment and have different reflection ranges. The reflection areas can be different Have radii of curvature, so that emitted from the individual groups of LEDs in these areas light fluxes are emitted in different sized radiation angles to be illuminated surface.

The radiation angle to surfaces at a greater distance to the luminaire insert or to the lamp is smaller and the radiation angle to surfaces at a smaller distance to the luminaire is correspondingly larger, so that the surface areas of the surface to be illuminated are "illuminated" with approximately the same intensity. Through appropriate modifications of the luminaire insert, a uniform illumination of the entire surface can also be used to achieve different lighting effects.

The emitted luminous fluxes of the groups of light-emitting diodes can in principle impinge on the entire concave inner surface of the reflector. It can also be provided that these luminous flux impinge in different, adjoining or partially overlapping reflection regions of the reflector. In this case, these reflection regions can have different radii of curvature for achieving different light distribution of the incident luminous fluxes, which radii can merge continuously into one another or which are formed predefined against one another.

Further advantageous embodiments of this can be found in the further subclaims.

Thus, it can be provided according to claim 2, that the groups of light emitting diodes are arranged one above the other line by line and that the light flux emitted by the light emitting diodes of each group emits in each case into one of the reflection regions of the reflector. The lines of light emitting diodes are offset from one another in this way, that the light emission of a group of light-emitting diodes from the reflector or from the respective associated reflector region is radiated into a region of the surface to be illuminated greater distance with a smaller beam angle and the luminous flux of the other group of light emitting diodes in a region of smaller distance to the light with a larger beam angle from the reflector ,

Furthermore, it can be provided according to claim 3, that the groups of light-emitting diodes are arranged on separate illuminant carriers and that the illuminant carriers are configured with their respective associated groups of light emitting diodes relative to one another and / or relative to the reflector with its reflector regions adjustable. With this configuration, the groups of light-emitting diodes are in particular separately and independently adjustable relative to the reflector, so that different lighting effects on the surface to be illuminated can be achieved.

Further, it can be provided according to claim 4, that one group of LEDs emits a luminous flux of greater intensity and the other group of LEDs emits a luminous flux with lower luminous intensity and that the luminous flux of greater intensity through the reflector in a region of the surface greater distance from the luminaire insert and the lower intensity luminous flux is reflected by the reflector into an area of the lesser distance from the luminaire insert. By this measure, an extremely uniform illumination of the entire surface can be achieved in particular in connection with different emanating from the reflector beam angles of the light fluxes of the groups of LEDs.

It can further be provided according to claim 5, that the groups of light emitting diodes light streams with different color temperatures and / or having different colors. As a result, different lighting effects can be achieved. In particular, by the choice of different color temperatures, as is known for example by the terms "warm white" and "cool white", the uniformity of the illumination of a surface can be influenced. For example, "warm white" emitting light emitting diodes can be used to illuminate the areas with a smaller distance to the luminaire insert, while for illuminating areas with a greater distance to the luminaire insert LEDs are used, which radiate a "cold white" light. Since the reflection intensity of "warm white" light from an object is less than the reflection intensity of "cool white" light, the surface areas with a greater distance to the luminaire insert also appear approximately the same brightness or at least as bright as the areas illuminated with "warm white" light , By choosing different colors in terms of red, blue, green, etc., also different color effects can be achieved. The different surface areas of the surface to be illuminated may also be spaced apart so that "dark" intermediate areas are created. Also, these areas can seamlessly connect or partially overlap.

To be able to adjust different lighting effects in a simple manner, it can be provided according to claim 6, that the groups of LEDs in their luminosity and / or color are controllable in groups and that by appropriate control of the groups of LEDs, the different areas of the surface to be illuminated are evenly or differently illuminated.

To a surface to be illuminated as evenly as possible or consciously with different luminous intensities with appropriate To be able to act on light fluxes can be provided according to claim 7, that the reflector is formed with its reflection regions in several parts and that the reflection regions of the reflector relative to each other and / or relative to the groups of light emitting diodes are adjustable.

Further, it can be provided according to claim 8, that the adjustment of the illuminant carrier and / or the reflector regions is carried out by a respective motor drive. This configuration, in particular the setting of different lighting effects is considerably simplified and can be done in particular in finished luminaire insert in a luminaire housing.

According to claim 9, furthermore, a receiving device, to which control signals can be fed by a transmitting device, may be provided, wherein the receiving device effects the luminous intensity and / or color of the groups of light emitting diodes and / or the adjustment of the motor drives in dependence on the incoming control signals. As a result of this embodiment, the luminaire insert, in particular with regard to its illumination effect, can be variably adapted to desired lighting effects in an extremely simple manner. In particular, with changing requirements, these effects can also be adjusted variably.

Furthermore, it can be provided according to claim 10 that the luminaire housing receives the luminaire insert with its groups of light emitting diodes and its reflector and forms a light exit window and that the groups of light emitting diodes are arranged in a first edge region of the light exit window and that the reflector in a second, the first Edge region is preferably arranged opposite edge region of the light exit window and that the reflector with his Reflection has a concave curved, the light emitted from the light emitting diode bundling surface.

For this purpose, furthermore, for a correspondingly desired bundling of the individual luminous fluxes according to claim 11 it can be provided that the radii of curvature of the reflection regions of the reflector are different and that the radius of curvature of the reflector region through which the luminous flux of the one group of light-emitting diodes into a region of the surface with less Distance is reflected to the luminaire insert is smaller than the radius of curvature of a reflection region through which the luminous flux of another group of light-emitting diodes is reflected in a region of the surface at a greater distance from the luminaire insert. This embodiment is particularly advantageous for a uniform possible illumination of a surface to be illuminated large height.

Further, it can be provided according to claim 12, that in the edge region of the group vn LEDs a light emission window in the area of the group of LEDs covering aperture is provided and that the aperture is preferably formed adjustable. Through this aperture provided a direct light emission of the light fluxes of the groups of LEDs is avoided by the light exit window of the lamp housing. At least a light emission is limited so far that the viewer is not dazzled by the light-emitting diodes arranged in the luminaire housing. Depending on the application may be preferably provided that this aperture is adjustable, so that the shading of the groups of light emitting diodes can be adapted to the given lighting task.

Reference to the drawing, the invention is explained in more detail by way of example in the following. The invention is not limited to the concrete

Fig. 1

eine perspektivische Darstellung eines Leuchtengehäuses mit eingesetztem Leuchteneinsatz;

Fig. 2

einen Schnitt II-II des Leuchtengehäuses aus Fig. 1 in perspektivischer Darstellung;

Fig. 3

den Schnitt II-II des Leuchteneinsatzes, wie dieser in das Leuchtengehäuse aus Fig. 1 eingesetzt ist;

Fig. 4

eine Schnittdarstellung des Leuchtengehäuses mit eingesetztem Leuchteneinsatz;

Fig. 5

eine schematische Darstellung mit den von den beiden Gruppen von Leuchtdioden abgestrahlten und vom Reflektor zu einer zu beleuchtenden Wandfläche reflektierten Lichtströmen;

Fig. 6

eine schematische Darstellung eines Leuchteneinsatzes mit einer Verstellmöglichkeit der Leuchtdioden relativ zum Reflektor;

Fig. 7

eine schematische Darstellung eines Leuchteneinsatzes mit zusätzlicher Möglichkeit der Verstellung der Gruppen von Leuchtdioden untereinander;

Fig. 8

eine schematische Darstellung der Gruppen von Leuchtdioden zusammen mit dem Reflektor aus den Fig. 6 und 7 mit zusätzlicher Möglichkeit der Drehrichtungsverstellung der Gruppen von Leuchtdioden;

Fig. 9

eine schematische Darstellung der Gruppen von Leuchtdioden zusammen mit dem Reflektor aus Fig. 8 mit einer verstellbaren Blende.

Design of the exemplified embodiments shown limited. It shows:

Fig. 1

a perspective view of a lamp housing with inserted lamp insert;

Fig. 2

a section II-II of the lamp housing Fig. 1 in perspective view;

Fig. 3

the section II-II of the luminaire insert, as this in the luminaire housing Fig. 1 is used;

Fig. 4

a sectional view of the lamp housing with inserted luminaire insert;

Fig. 5

a schematic representation with the radiated from the two groups of light emitting diodes and reflected by the reflector to a wall surface to be illuminated light fluxes;

Fig. 6

a schematic representation of a luminaire insert with an adjustment of the light emitting diodes relative to the reflector;

Fig. 7

a schematic representation of a luminaire insert with additional possibility of adjusting the groups of LEDs with each other;

Fig. 8

a schematic representation of the groups of LEDs together with the reflector of the 6 and 7 with additional possibility of the direction of rotation adjustment of the groups of light-emitting diodes;

Fig. 9

a schematic representation of the groups of LEDs together with the reflector Fig. 8 with an adjustable aperture.

The invention will be explained in more detail using the example of a floor lamp. Instead of a floor lamp may also be a lamp, which is freely deployable, on one of the surface to be illuminated adjacent wall or a ceiling mountable.

In the Fig. 1 floor lamp 1 shown by way of example comprises a luminaire housing 2, on which a mounting frame 3 is placed. This floor lamp 1 is sunk with its luminaire housing 2 sunk in a ground, in which state a peripheral mounting plate 4 of the mounting frame 3 rests on the ground. It is off Fig. 1 it can be seen that the luminaire housing 2 together with the mounting frame 3 forms a type of light exit window 5 on the upper side.

The luminaire housing 2 is used in the illustrated embodiment for receiving a luminaire insert 6, which is arranged within the luminaire housing 2 and in particular "below" the mounting frame 3. Thus, the light exit window 5 can be used on the upper side with a glass plate (not shown in the drawing) to protect the lamp insert 6. It can also be seen that the luminaire insert 6 extends at least approximately over the entire length of the luminaire housing 2 and has a luminous means carrier 8 arranged below the rear edge region 7 of the light exit window 5. Opposite this illuminant carrier 8 there is provided a reflector 9, which in the illustrated embodiment is arranged in the edge region 10 opposite the edge region 10 of the light exit window 5. This reflector 9 also extends approximately over the entire length of the lamp housing 2 and is arranged with its upper edge 11 below the edge region 10 of the light exit window 5.

Fig. 2 shows a perspective section II-II Fig. 1 , Out Fig. 2 It can be seen that the mounting frame 3 is stationary via circumferential, vertically downwardly directed mounting legs 15 with the side walls 16 of the mounting housing 2 in combination. To accommodate a too in Fig. 2 not shown, these side walls 16 at least in the edge regions 7 and 10 of the light exit window 5 horizontally inwardly directed retaining webs 17 and 18 which are provided along its inner edge with vertically upwardly directed support webs 19 and 20. The illuminant carrier 8 is arranged in particular below the "rear" holding web 17 and receives two line-shaped arranged in groups 25 and 26 LEDs. In the illustrated embodiment, the light source carrier 8 is designed such that the line by line superimposed groups 25 and 26 of light-emitting diodes together find space on this light source carrier 8.

Next is out Fig. 2 recognizable that the reflector 9 is arranged with its upper edge 11 below the light exit window 5 and approximately in the region of the height of the "front" holding web 18. Starting from its upper edge 11, the reflector 9 extends arcuately to approximately vertically below the two groups 25 and 26 of light-emitting diodes. Accordingly, this reflector 9 ends with its "inner" end edge 27 on an approximately horizontally extending support plate 28 of the lamp insert 6. From this support plate 28 leads at a distance from the end edge 27 of the reflector 9, a vertically upwardly bent support plate 29 to the light source 8, which in the illustrated embodiment integral part of this support plate 29 is. Furthermore, it can be seen that the illuminant carrier 8 is bent in the direction of the arrow 30 by about 30 ° inwardly bent on the support plate 29. The luminaire insert 6 is partially closed in the rear end region by a connecting wall 31, to which the reflector 9 is fixed fixed. In the front area, like this Fig. 1 it can be seen, accordingly, a second connecting wall 32 is provided with which the reflector 9 is also fixedly connected. Between the side wall 16 and the reflector 9, the lamp housing 2 forms a receiving space 33, which serves for example for receiving supply devices for the groups 25 and 26 of the light-emitting diodes.

Fig. 3 shows the same section II-II Fig. 1 It can be seen that the lower support plate 28 forms in the illustrated embodiment in approximately horizontal, lateral extension two (or more) mounting portions 34 and 35, which for the fixed mounting of terminals 36th and a control device 37, wherein the control device can also have a power supply unit for supplying energy to the groups 25 and 26 of light-emitting diodes as an integral component.

Next is out Fig. 3 It can be seen that the rear connecting wall 31 connects the reflector 9, on the one hand, fixedly connected to the lower support plate 28 and on the other hand with the vertically oriented support plate 29 of the lamp insert 6. Thus, this luminaire insert 6 forms a complete intrinsically stable unit which can be used in correspondingly designed luminaire housing, as exemplified for the luminaire housing 2 of the floor lamp 1 Fig. 1 is shown. It is understood that this lamp insert 6 can be used in the illustrated configuration not only in a floor lamp 1, but also in other, for example, be integrated into a wall or integrable into a ceiling luminaire housing. This is ultimately dependent on the intended use or the conditions of use for corresponding lighting tasks. Furthermore, in

Fig. 3 the corresponding reference numerals Fig. 2 entered so that the description too Fig. 2 also on the presentation of the Fig. 3 to read, as far as the same components are shown there.

Fig. 4 shows a sectional view of the floor lamp 1 with its lamp housing 2. It can be seen that the lamp housing 2 is box-like and between its side walls 16, the lamp insert 6 receives. This is connected in the present embodiment with its support plate 28 with a bottom plate 38 of the lamp housing 2 via a screw 39. Preferably, several such screw 39 are provided for this connection, which are distributed uniformly over the entire length of the lamp insert 6. Next is out Fig. 4 It can be seen that the connection terminals 36 and the control device 37 are accommodated in the receiving space 33 of the luminaire housing 2 next to the reflector 9. On the holding webs 17 and 18, a circumferential sealing element 40 is placed, which is fixed inwardly by the vertically upwardly directed support webs 19 and 20.

On these supporting webs 19, 20, a glass plate 41 is placed, which is sealed against the lamp housing 2 by the sealing member 40. For holding the glass plate 41, a fixed mounting plate 42 is provided on the right side of the lamp housing 2, which forms an inwardly directed towards the glass plate 41 mounting flange 43 in the region of its upper end edge. The glass plate 41 engages in the mounted state this mounting flange 43 and is held stationary on the opposite side of the light exit window 5 by an angle plate 44. This angle plate 44 is held by a screw 45 detachable on the lamp housing 2. For this purpose, this screw connection 45 has a threaded bushing 46 projecting upwards at the "rear" holding web 17 on. Overall, in the illustrated embodiment, two such screw 45 are provided, of which in Fi. 1 both threaded bushings 46 in Fig. 1 are recognizable. Furthermore, it is off Fig. 4 It can be seen that the mounting frame 3 with its mounting plate 4, the luminaire housing 2 projects laterally so that the luminaire housing 2 on this mounting plate 4 on a in Fig. 4 subsoil, not shown, supported vertically in the installed state.

Next is out Fig. 4 It can be seen that the luminaire insert 6 is arranged completely within the luminaire housing 2 and the two groups 25 and 26 of light-emitting diodes are located below the left-hand support web 17 and thus below the light exit window 5. Also, at a setting angle α of about 30 ° in the direction of arrow 30 bent inward light source 8 can be seen. This is an integral part of the vertically extending support plate 29 and has a predetermined distance from the oppositely arranged reflector 9. Since the two groups 25 and 26 are arranged vertically above one another by light-emitting diodes, the luminous flux emitted by these two groups of light-emitting diodes 25 and 26 is also radiated onto the reflector 9 at different emission angles.

The reflector 9 is integrally formed in the illustrated embodiment and has a concave, cylinder-segment-like shape. It can be provided that the radius of curvature of the individual regions of the reflector 9 is formed differently. In Fig. 4 Here, for example, for the reflection regions 50 and 51 of the reflector 9 in each case a radius R1 or R2 drawn, wherein the radius R1 is smaller than the radius R2 . Thus, by the reflection region 51, a stronger focusing of the light emitted, for example, by the group of light emitting diodes 25 through the light emission window 5 reached through. The focusing of the reflection region 50 is correspondingly smaller due to the larger radius of curvature R2, so that the luminous flux passing through the light exit window 5 has a larger emission angle.

Fig. 5 shows schematically a possible beam path of the light emitted by the two groups 25 and 26 of light emitting diodes. For example, a "light cone" 55 is emitted by the group 25 of light-emitting diodes 55 at an emission angle β of approximately 47 ° into the upper third of the reflector 9. From the upper third of the reflector 9, this light cone 55 by the in Fig. 5 only schematically illustrated light exit window 5 on a wall surface 56 "back" reflected. At the in Fig. 5 schematically illustrated light flux meet the reflected or reflected by the reflector 9 light beams in a focal point 57 which lies at a distance in front of the wall surface 56. After this focal point 57, the light rays diverge from this luminous flux 58 and subsequently impinge on a wall region 59 of the wall surface 56. The scattering angle β 1 of the luminous flux 58 caused by the reflection of the reflector 9 is relatively large after passing through the focal point 57 in the embodiment shown, so that the region 59 also has a relatively large height.

The luminous flux of the "light cone" 60 emitted by the light emitting diode group 26 leaves the group 26 of the LED at a cone angle δ of approximately 52 ° and impinges on the reflector 9 approximately at the level of its lower two-thirds. From there, this light cone 60 is in turn reflected focusing, its light rays also penetrate a focal point 61, which also lies at a distance in front of the wall surface 56. After passing through the focal point 61, the luminous flux 62 leaves this focal point 61 and hits in an upper, in Fig. 5 only partially recognizable wall portion 63 on the wall surface 56.

How out Fig. 5 can be seen by way of example, lie the two wall portions 59 and 63 vertically above each other and go seamlessly into each other. With an appropriate configuration, on the one hand the distances of the groups 25 and 26 from the reflector 9 and the distances between these groups 25 and 26 of light emitting diodes and also the emission of their light cone 55 and 60 different wall areas of the wall surface 56 can be illuminated here.

Next is out Fig. 5 It can be seen that the emission angle δ 1 of the luminous flux 62 is considerably smaller than the emission angle β 1 of the luminous flux 58. In this way, a more intensive illumination of the region 63 is achieved. Since the region 63 is considerably further away from the reflector 9, however, approximately the same brightness in this region 63 is achieved by the smaller emission angle δ 1 .

From the schematic representation of Fig. 5 , which only schematically reproduces the beam path, starting from the two groups 25 and 26 of light-emitting diodes, it can be seen that a wall surface 56 above the light insert 6 can be illuminated extremely uniformly. By appropriate choice of the orientation and arrangement of the groups 25 and 26 of light emitting diodes relative to the reflector 9, the regions 59 and 63 may vary. Also, instead of just two line-shaped groups 25 and 26 of light-emitting diodes, it is also possible to provide a plurality of groups of light-emitting diodes, so that a plurality of regions of the wall surface 56 can also be illuminated. In particular, it can also be provided that the in Fig. 5 exemplified and adjoining areas 59 and 63 partially cover, so that extremely soft "transitions" are achievable.

Furthermore, the light intensities of the groups 25 and 26 of light-emitting diodes could also be different. For example, the group 26 of light emitting diodes emit a "warm white" light, which is less bright. Since the distance of the region 59 to the reflector 9 is considerably smaller than the distance of the region 63 from the reflector 9, a sufficient illumination of the region 59 results despite the lower luminosity of "warm white" LEDs.

In contrast, if one uses "cold white" light-emitting diodes for the group 25 of light-emitting diodes, a higher energy yield is obtained since such "cold-white" light-emitting diodes cause a stronger luminous flux. The combination of this higher luminous flux of group 25 of light emitting diodes in cooperation with the smaller scattering angle δ 1 of the luminous flux 62 causes a similarly bright illumination with "cool white" light in the region 63, as in the region 59, on which the "warm white" light impinges. Since, in particular, "cool white" light is more strongly reflected by a surface to be illuminated, the observer thus has the impression of a relatively uniform illumination of the entire wall surface 56 in the two wall regions 59 and 63 Fig. 5 It can be seen that the luminaire insert 6 is arranged with its light exit window 5 at a relatively small distance from the wall surface 56. This distance can be only a few centimeters. Despite this relatively unfavorable for lighting relative position of the lamp insert 6 with its light exit window 5 to the wall surface 56, this is due to the special arrangement of groups 25 and 26 of light emitting diodes relative to the reflector 9 sufficiently uniformly illuminated.

Based on this basic concept, it is also possible, in particular with regard to the position and orientation of the groups 25 and 26 of the light-emitting diodes relative to one another and relative to the reflector 9, to achieve different illumination effects. Thus, for example, the groups of light-emitting diodes 25 and 26 can be equipped with "color change light-emitting diodes" which emit different color light currents by appropriate control-for example via the control device 37. Also, the reflector 9 may be formed in several parts, wherein the groups of light emitting diodes 25 and 26 may be provided with different optical lens systems, so that the cone angle of their light cone 55 and 60 may also be more or less large.

In particular, these light cones 55 and 60 can be designed with respect to their respective cone angle β or δ such that they only act on a predetermined reflection range of the reflector 9 with a luminous flux. In this case, the luminous flux or light cone 55 and 60 do not penetrate each other, as in Fig. 5 is shown by way of example.

If such a reflector 9 is designed in several parts, its individual reflection regions can also be individually adjustable relative to one another and relative to the groups 25 and 26 of light-emitting diodes. Preferably, a motor position can be provided here, which can also be controlled remotely.

The adjustment of the groups 25 and 26 of light-emitting diodes or of further provided groups of light emitting diodes can be motorized and remotely controlled, so that after the installation of such a floor lamp 1, as this in Fig. 1 is shown by way of example, various lighting effects are adjustable in retrospect and remotely controlled.

To show the Fig. 6 to 9 exemplary and schematically several different settings, in particular the groups 25 and 26 of light-emitting diodes.

From the schematic representation of Fig. 6 It can be seen that in this illustrated embodiment, the support plate 28 is formed in two parts and forms an adjustable in the direction of the double arrow 65 bearing portion 66. At this bearing portion 66, a vertically upwardly bent support plate 67 is formed, which is connected via a bearing wall 68 with the bearing portion 66 in connection. This bearing wall 68 is in the end portions, corresponding to the connecting walls 31 and 32, as in Fig. 1 can be seen, twice provided on the bearing portion 66 and the support plate 67. Between these bearing walls 68, two light source carriers 70 and 71 are received, on which the two groups 25 and 26 are arranged by light-emitting diodes.

Due to the adjustability of the bearing portion 66 thus the distance between the groups 25 and 26 to the reflector 9 is variably adjustable within certain limits. As a result of this adjustability, depending on the distance of the groups 25 and 26 of the light-emitting diodes from the reflector 9, the light fluxes corresponding to the arrows 72 and 73 or 74 and 75 strike the reflector 9 in different regions. Due to the curved course of the reflector 9 thus different emission directions of the reflector 9 are adjustable, as shown schematically by the arrows 76, 77, 78 and 79.

This shows Fig. 7 another adjustment of the two groups 25 and 26 of LEDs. How out Fig. 7 it can be seen, the two illuminant carriers 70 and 71 are received in the bearing wall 68 in vertically extending slots 80 and 81, respectively. Accordingly, the two illuminant carriers 70 and 71 in the direction of the double arrow 82 vertically relative to each other and relative to the reflector 9 adjustable. According to this adjustment, the same effect can be achieved as already Fig. 6 described. Accordingly, the main beam directions by the corresponding arrows 72 to 75, starting from the groups 25 and 26 of the LEDs, in Fig. 7 shown. Since here too the impact areas on the reflector 9 change depending on the vertical position of the groups 25, 26 of light-emitting diodes, the emission direction of the reflector 9 is accordingly also adjustable, as shown in FIG Fig. 7 also indicated by the arrows 76 to 79. Preferably, the embodiment according to Fig. 6 with the embodiment according to Fig. 7 be combined so that the emission directions of the reflector 9 are variably adjustable in a relatively large range.

In addition to the displaceable adjustment in the direction of the double arrow 65 or the double arrow 82, a pivotable mounting of the groups 25 and 26 of light-emitting diodes or their illuminant carriers 70 and 71 can also be provided, as shown by way of example Fig. 8 is removable. The corresponding main beam directions are also shown schematically by the arrows 72 to 75. In accordance with the impact area on the reflector 9, different main emission directions thus result from such a pivotable mounting or pivoting adjustment of the groups 25 and 26 of light-emitting diodes, as shown in FIG Fig. 8 indicated schematically by the arrows 76 to 79.

Furthermore, above the groups 25 and 26 of light emitting diodes, a plate-shaped aperture 85 may be provided, as shown in FIG Fig. 9 is shown. This can be designed to be adjustable in the direction of the double arrow s 65. By this measure, the groups of light-emitting diodes 25 and 26 "glare-free" are covered, so that in particular an adaptation to each present conditions of use is possible and the in Fig. 1 Floor lamp shown can be used glare-free.

Claims (12)

Luminaire insert (6) for a luminaire housing (2), in particular a floor lamp (1), by means of which a surface emanating from the luminaire housing (2) can be illuminated,
characterized,
in that at least two groups (25, 26) arranged in each case in rows are provided by light-emitting diodes which are arranged on a common or separate light-emitting means carriers (8, 70, 71) and,
that the groups (25, 26) a mono- or multi-piece reflector (9) with one or more reflective areas (50, 51) is provided opposite of light emitting diodes and,
in that the arrangement and / or alignment of the groups (25, 26) of light-emitting diodes and / or the arrangement and / or orientation of the reflector (9) with its reflection region (s) (50, 51) relative to the groups ( 25, 26) of light emitting diodes is selected such
that the luminous flux of the one group (25) emitted by light-emitting diodes (55, 72, 74) by the reflector (9) in a predeterminable region (59) of the surface (56) is reflected and,
in that the luminous flux (60, 73, 75) emitted by the other group (26) is reflected by the reflector (9) into another predeterminable region (63) of the surface (56). Luminaire insert according to claim 1, characterized in that the groups (25, 26) of light-emitting diodes are arranged one above the other one above the other and,
in that the luminous flux (55, 60, 72, 73, 74, 75) emitted by the light-emitting diodes of each group (25, 26) in each case radiates into one of the reflection regions (50, 51) of the reflector (9). Luminaire insert according to claim 1 or 2, characterized in that the groups (25, 26) of light-emitting diodes are arranged on separate illuminant carriers (70, 71) and,
in that the illuminant carriers (70, 71) with their respectively assigned groups (25, 26) of light-emitting diodes relative to one another and / or relative to the reflector (9) are adjustably designed with its reflector regions (50, 51). Luminaire insert according to one of claims 1 to 3, characterized in that the one group (26) of LEDs emits a luminous flux (60, 73, 75) of greater intensity and the other group (25) of light emitting diodes a luminous flux (55, 72, 74 ) and that the luminous flux (60, 73, 75) of greater intensity through the reflector (9) into a region (63) of the surface (56) greater distance from the lamp insert (6) and the luminous flux (55, 72 , 74) of lower intensity is reflected by the reflector (9) into a region (59) of the surface (56) closer to the luminaire insert (6). Luminaire insert according to one of claims 1 to 4, characterized in that the groups (25, 26) of light emitting diodes luminous flux (55, 60, 72, 73, 74, 75) having different color temperatures and / or having different colors. Luminaire insert according to one of claims 1 to 5, characterized in that the groups (25, 26) of LEDs in their luminosity and / or their color are controllable in groups and,
that by appropriate control of the groups (25, 26) of light emitting diodes, the different areas (59, 63) of the surface (56) to be illuminated are uniformly or differently illuminatable. Luminaire insert according to one of claims 1 to 6, characterized in that the reflector (9) with its reflection regions (50, 51) is designed in several parts and,
in that the reflection regions (50, 51) of the reflector (9) are adjustable relative to one another and / or relative to the groups (25, 26) of light-emitting diodes. Luminaire insert according to claim 3 or 7, characterized in that the adjustment of the illuminant carriers (8, 70, 71) and / or the reflector regions (50, 51) takes place in each case by a motor drive. Lighting insert according to claim 6 or 8, characterized in that a receiving device is provided, which control signals can be supplied by a transmitting device and that the receiving device in response to the incoming control signals, the luminosity and / or color of the groups (25, 26) of light emitting diodes and / or causes the adjustment of the motor drives. Luminaire insert according to one of claims 1 to 9, characterized in that the luminaire housing (2) receives the luminaire insert (6) with its groups (25, 26) of LEDs and its reflector (9) and forms a light exit window (5) and,
the groups (25, 26) of light-emitting diodes are arranged in a first edge area (7) of the light exit window (5) and
the reflector (9) is arranged in a second edge region (10), preferably opposite the first edge region (7) of the light exit window (5), and
in that the reflector (9) with its reflection regions (50, 51) has a concavely curved surface that concentrates the luminous flux (55, 60, 72, 73, 74, 75) emitted by the groups (25, 26) of light-emitting diodes. Luminaire insert according to claim 10, characterized in that the radii of curvature (R1, R2) of the reflection regions (50, 51) of the reflector (9) are different and that the radius of curvature (R ") of the reflector region (51) through which the luminous flux ( 55, 72, 74) of a group (25) of light-emitting diodes in a region (59) of the surface (56) with a smaller distance to the lamp insert (6) is reflected is smaller than the radius of curvature (R1) of a reflection region (50) in which the luminous flux (60, 73, 75) of another group (25) of light-emitting diodes is reflected into a region (63) of the surface (56) at a greater distance from the luminaire insert (6). Luminaire insert according to claim 10 or 11, characterized in that in the edge region (7) of the groups (25, 26) of light emitting diodes a the light exit window (5) in the range of groups of (25, 26) light-emitting diode covering aperture (85) is provided and .
the aperture (85) is preferably adjustable.

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